摘要:
An ignition control apparatus (100) according to one embodiment of the present invention is an ignition control apparatus which generates, in an ignition coil, a voltage to be supplied to a spark plug that is provided in an internal combustion engine on the basis of a pulse signal induced in the ignition coil of the internal combustion engine, wherein the ignition control apparatus comprises at least a switch element (160) for passing current through and discharge the ignition coil, and a controlling unit (140) that acquires the timing for discharge the ignition coil in response to a first pulse of the pulse signal, and controls the switch element so that a current flows through the ignition coil in response to a second pulse that follows the first pulse and the ignition coil is opened on the basis of the discharge timing acquired in response to the first pulse.
摘要:
An ignition device (100) includes a power supply (2) for discharge; an AC power supply (3); an ignition coil (41) for generating a secondary voltage in a secondary coil (41B); an ignition plug (1) connected to the secondary coil (41B); an AC electrode (43) electrically connected to the AC power supply (3); a high-voltage electrode (42) located between the secondary coil (41B) and the ignition plug (1); an insulator (44) located between the two electrodes (42, 43); and a second insulator (47) which covers the ignition coil (41) and a capacitor (49) composed of the two electrodes (42, 43) and an insulator (44). The secondary voltage and AC power are supplied to the ignition plug (1) via the high-voltage electrode (42). Thus, excellent ignition performance can be implemented while the occurrence of misfire is restrained.
摘要:
This internal combustion engine ignition device, which does not have a battery, is capable of reliably providing ignition from the very start of the rotation of an engine, and prevents the excessive generation of ignition energy. The internal combustion engine ignition device has a core (12), a coil part (L) that is wound over the core, and a secondary coil (L 2 ) that is wound on the outer peripheral side of the coil part. A switching element (Tr) switches an induced current, which is generated via the rotation of a permanent magnet, of a primary coil on and off. A resistor (R 1 ) and a microcomputer (42) are connected to the switching element, and a rotation detection circuit (41) is connected to the microcomputer. The microcomputer drives the switching element so as to rapidly change the current flowing through the primary coil and generate a high voltage in the secondary coil, and generate a spark discharge in a spark plug (22) connected to the secondary coil. In the coil part (L), one coil is divided by an intermediate tap (Tap), forming the primary coil (L 1 ) and a charging coil (L CH ).
摘要:
This internal combustion engine ignition device, which does not have a battery, is capable of reliably providing ignition from the very start of the rotation of an engine, and prevents the excessive generation of ignition energy. The internal combustion engine ignition device has a core (12), a coil part (L) that is wound over the core, and a secondary coil (L 2 ) that is wound on the outer peripheral side of the coil part. A switching element (Tr) switches an induced current, which is generated via the rotation of a permanent magnet, of a primary coil on and off. A resistor (R 1 ) and a microcomputer (42) are connected to the switching element, and a rotation detection circuit (41) is connected to the microcomputer. The microcomputer drives the switching element so as to rapidly change the current flowing through the primary coil and generate a high voltage in the secondary coil, and generate a spark discharge in a spark plug (22) connected to the secondary coil. In the coil part (L), one coil is divided by an intermediate tap (Tap), forming the primary coil (L 1 ) and a charging coil (L CH ).
摘要:
An ignition control device (100) according to one embodiment of the present invention is configured to, based on a pulse signal to be induced in an ignition coil in accordance with rotation of an internal combustion engine, cause a voltage to be supplied to an ignition plug included in the internal combustion engine, to be generated in the ignition coil. The ignition control device includes: a switching element (180) configured to energize the ignition coil; a biasing unit (170) configured to bias control terminals of the switching element so that the switching element is turned on when the pulse signal is induced; a state detecting unit (130) configured to detect a biased state of the switching element; and a control unit (150) configured to set a timing for controlling de-energization of the ignition coil in response to a result of detection performed by the state detecting unit, and to control the switching element to be turned off in accordance with the timing.
摘要:
A capacitor discharge ignition device (2) in which a coil unit (4) including an ignition coil (IG) and an exciter coil (EX) wound around a common core, and an ignition unit (5) including a circuit board (501) and components of an ignition circuit mounted to the circuit board are housed in a case (6) and molded with resin (7) poured into the case, wherein the ignition coil and the exciter coil are placed axially with a spacing therebetween and a space (SP) is formed between the coils, the circuit board (501) of the ignition unit is placed on a lateral side of the coil unit, and terminals for connecting the ignition coil and the exciter coil to the circuit board are all connected to the circuit board through the space (SP) between the ignition coil (IG) and the exciter coil (EX).
摘要:
The invention simplifies the structure of a magneto generator and stabilizes the operation of an internal combustion engine at the time of start-up, thereby providing an ignition device simplified in structure and reduced in size and providing improved safety to the internal combustion engine. In an ignition device for a capacitive discharge internal combustion engine, an ignition timing signal is calculated with a cycle detection signal obtained at a timing at which a forward voltage portion of an output voltage from a generator coil has reached a cycle detection voltage for making continual ignition operations available, and a peak voltage detection signal and a start-up voltage detection signal are obtained in accordance with a delayed reverse voltage portion of the output voltage from the generator coil. In a preset normal region speed or less in which a load is coupled to the engine, an ignition signal is output immediately after the peak voltage detection signal has been generated. In a normal region speed or more, an ignition signal is output after the duration of the ignition timing signal from the point in time of output of the cycle detection signal. At the time of start-up, an ignition signal is output in response to the start-up voltage detection signal according to the cycle detection signal. This eliminates the need of a coil for generating a timing signal and provides a safe start-up operation. Furthermore at very high speed ignition events are stopped and thereafter released at an engine speed, at which the upper limit speed is not reached immediately after recovery.
摘要:
A control apparatus for an internal combustion engine, includes: a fuel-injection unit (22); an ignition unit (16, 17); a crank angle detection unit (27); a fuel pump (41); a booster unit (55); an ignition discharge unit (56); and a control unit (4, 56) that controls the fuel injection unit (22), the ignition unit (16, 17), and the fuel pump (41), that ascertains ignition timings based on crank signals output from the crank angle detection unit (27), and that performs a startup control sequence that is made up of fuel injection processing, voltage boosting processing, ignition processing, and fuel supply processing.
摘要:
A system for facilitating the ignition of an internal combustion engine provided with an ignition coil of inductive type comprising a primary winding, connected to the engine switching off circuit, and a secondary winding connected to the engine ignition plug; said system comprises an electronic board, inserted at the ends of the primary winding of the coil and adapted for connecting an energy source to said coil at least when the engine has to be started, said electronic board comprising at least: a control circuit connected to means for detecting the engine piston position and a driving circuit controlled by said control circuit for supplying energy to the engine ignition coil when the piston is in the proximity of the top dead centre.